code: def render_git_describe(pieces):
      """TAG[-DISTANCE-gHEX][-dirty].
  
      Like 'git describe --tags --dirty --always'.
  
      Exceptions:
      1: no tags. HEX[-dirty]  (note: no 'g' prefix)
      """
      if pieces["closest-tag"]:
          rendered = pieces["closest-tag"]
          if pieces["distance"]:
              rendered += f"-{pieces['distance']}-g{pieces['short']}"
      else:
          # exception #1
          rendered = pieces["short"]
      if pieces["dirty"]:
          rendered += "-dirty"
      return rendered
  
imports: import errno
  import functools
  import os
  import re
  import subprocess
  import sys
  from typing import Callable
label_desc: Use image node_id 17 for calling a global function with example usage: render_git_describe(pieces) and returns: rendered